SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
LISPortela Airport
Lisbon, Portugal
$796 USD
-44%$446 USD
Verified Nov 29, 2025 at 10:15 AMDecember 2025
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Fair Availability
20% of dates checked are available within 10% of the lowest price
Thursday, December 25th, 2025
10 round-trip options
Returning
Tue, Dec 30, 2025•5 Day Trip
$1,291 USD
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Wed, Dec 31, 2025•6 Day Trip
$1,528 USD
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Thu, Jan 1, 2026•7 Day Trip
$1,529 USD
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Fri, Jan 2, 2026•8 Day Trip
$2,156 USD
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Sat, Jan 3, 2026•9 Day Trip
$2,211 USD
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Sun, Jan 4, 2026•10 Day Trip
$2,206 USD
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Mon, Jan 5, 2026•11 Day Trip
$1,650 USD
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Tue, Jan 6, 2026•12 Day Trip
$1,284 USD
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Wed, Jan 7, 2026•13 Day Trip
$1,194 USD
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Thu, Jan 8, 2026•14 Day Trip
$998 USD